Reflection Coefficient Circuit Using Three-Point Voltage Sensing
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Solution Overview
Problem
Existing reflection coefficient detection circuits in wireless communication systems require a specific length of transmission line, leading to increased size and complexity, which hinders miniaturization and integration in electronic devices.
Innovation Solution
A compact reflection coefficient detection circuit that utilizes three contact points on a transmission line to measure voltage values, eliminating the need for a λ/4 length transmission line, thereby reducing the overall size and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional reflection coefficient detection circuit is used, then the detection function is achieved, but the circuit size and complexity increase
Solution Approach 1:
The patent extracts only the necessary voltage magnitude information from the transmission line using three contact points, eliminating the need for complex λ/4 length transmission lines and directional couplers. This extraction approach maintains detection functionality while removing unnecessary circuit elements that contribute to size and complexity.
Solution Approach 2:
The patent changes the measurement parameter from requiring specific transmission line length (λ/4) to measuring voltage magnitude at three contact points. This parameter change allows the use of a compact circuit structure without the need for quarter-wavelength transmission lines, thereby reducing circuit size while maintaining detection accuracy.
2Device complexity
If a compact structure is used, then the device size is reduced, but the measurement precision may be affected
Solution Approach 1:
The patent applies local quality by placing three contact points at specific locations on the transmission line to measure voltage magnitude. This localized measurement approach at critical points maintains measurement precision while avoiding the need for extended transmission line structures, achieving compactness without sacrificing accuracy.
Data Source
AI summary
The disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate than a 4th generation (4G) communication system, such as long term evolution (LTE). A circuit for detecting a reflection coefficient of an electronic device in a wireless communication system is provided. The circuit includes at least one processor, a plurality of analog to digital converters (ADCs), a plurality of RF elements, and a plurality of transmission lines including a first transmission line, a second transmission line, and a third transmission line, wherein the plurality of ADCs, the plurality of RF elements, and the plurality of transmission lines are correspondingly connected to each other, respectively, the plurality of ADCs are connected to the at least one processor.